Indication |
For use as a single agent in the palliative treatment of patients
with persistent or recurrent ovarian cancer following first-line therapy
with a cisplatin and/or alkylating agent-based combination. |
Pharmacodynamics |
Altretamine is a novel antineoplastic agent. The precise
mechanism by which altretamine exerts its cytotoxic effect is unknown,
although a number of theoretical possibilities have been studied.
Structurally, altretamine resembles the alkylating agent
triethylenemelamine, yet in vitro tests for alkylating activity
of altretamine and its metabolitics have been negative. Altretamine has
been demonstrated to be efficacious for certain ovarian tumors resistant
to classical alkylating agents. Metabolism of altretamine is a
requirement of cytotoxicity. Synthetic monohydroxymethylmelamines, and
products of altretamine metabolism, in vitro and in vivo,
can form covalent adducts with tissue macromolecules including DNA, but
the relevance of these reactions to antitumor activity is unknown. |
Mechanism of action |
The precise mechanism by which altretamine exerts its cytotoxic
effect is unknown although it is classified as an alkylating
anti-neoplastic agent. Through this mechanism, the drug is metabolized
into alkylating agents by N-demethylation. These alkylating species
consequently damage tumor cells. |
Absorption |
Not Available |
Volume of distribution |
Not Available |
Protein binding |
94% |
Metabolism |
Not Available |
Route of elimination |
Human urinary metabolites were Ndemethylated homologues of
altretamine with <1% unmetabolized altretamine excreted at 24 hours. |
Half life |
4.7-10.2 hours |
Clearance |
Not Available |
Toxicity |
Not Available |